Superheater.



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W. F. BUCK & H. W. JACOBS.

SUPERHEATER.

* APPLICATION FILED JUNEZ, 1910.

Patenfed 001;. 4, 1910.

s SHEETS-SHEET 1.

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W. T. BUCK & H. WQJAOOBS.

SUPERHEATBR- APPLICATION FILED JUNE 2, 1910.

Patented Oct. 4, 1910.

6 SHBETS-SHEBT 2.

w. 11 BUCK & H. W. JACOBS.

SUPERHBATER.

APPLIOATIONIPILED JUNE 2, 1910.

Patented Oct. 4, 1910.

6 SHEETSSHEET 5.

DGOQQOGG GQGGQOOG W. P. BUCK & H. W. JACOBS.

SUPBRHEATER.

APPLICATION IILED IUNE2,1910.

6 SHEETSSHEET G.'

Patented Oct. 4, 1910 UNITED srrarns PATENT. OFFICE.

WILLIAM F. BUCK; or cnzoaeo. ILLINOIS, m nnnmrw. moons, on 'ror'nxa,

KANSAS.

SUPERHEATER- Specification 01' Letters Patent.

Patented Oct. 4, 1910.

Application flled June 2, 1910. swam. 564,673,

.tion, referencebeing had to the accompanying drawings, which form-apart of our specification.

T he object of our invention is to providea detachable superheater whlch1s simplein design and construction, the superheater being composed-oftwo compartments adapted for use on a Malletarticulated locomotive.

A fur-then oblect of our lnvent on is to provide a super-heater of theconstruction herein described .wherein all the steam pipe connectionswill'belooated on'the outside of the boiler shell, and in which theshell-f the superheater compartments will form .the intermediate partofthe boiler shell. v

Another object of our invention is to .pro-

vide a superheater that. will be held per-- fectly rigid and-in correctalineme nt with the boiler. anda-ls'o'permit ofready access being had toall stea-m pipe connections and allow any leaks to be detected andeasily repaired.

Iii'the drawings: Figure 1 is -a partial longitudinal. "verticalsectional view of -the intermediate part-of the boiler-pf an art culatedMallet com-poundlocomotive; alpor ti'ori, to wit, :-t-he cylinders andthe conned 'tions to and from the cylinders being shown insideelevation. F ig.' 2 ,is a cross-section lated. Mallet compoundlocomotive, showing Fig. 4 is a cross" sectional flew. taken'on the.line',C.,- D of Fig. ,3, look-- taken'-on1.the"line of-Fig. 1, lookingin the direction of'the-iar'rows 1F ig. .3' is allongitudina-lyertical'sectionalfview of the .1n termediate "part ofthe. boiler tot anarticua' modification.

ing in thefdirectlionof thearrows. Fig.- 5 is a longitudinal sectionalvie'w of the boiler of; an articulated Mallet. compound locomotive, withthe cylinders and'connectio'ns in elevation, showing anothermodification. Fig. 6 1s a. partial longitudlnal'sectional V1W'Sl10W- inganother modified-form of o'ur invent-ion,

wherein two tube'or'fiue sheets are employed.

- Our invention consists of superheating means for the steam before itenters thepressul'e cyli11ders and-other means for resuperhcatlngthesteam after it leaves-the high pressure cylinders and before it entersthe low pressure cylinders; the su erheater comprising two compartments;othcompartments being located Within the intermediate part of-theboiler.

W e have illustrated theinVentiom-whioh is of the smoke-tube type,wherein the smoke tubes pass continuously through both superheatingmeans or compartments-when employing the form shown in Figs. 1, 3 and5,as more especially adapted to an articulated Mallet compoundlocomotive.

In the construction shown in Figs. 1, 3 and 5 the superheatingmeansor-compartments are separated. by an annular flue sheet 1, thusproviding-means for superheating the steam for the hi h pressurecylinders and means for resuper eating the steam after it leaves thehigh pressure cylinders and before it is delivered to the low pressurecylinders. This flue sheet 1 is suitably riyetedor othervisesecuredwithin the outer shell, as clearly illustrated. 3

are the feed ater tubes 7 .Which convey. the gases ;of combustion'forwardto the smoke,- box of the boiler (not illustrated.) tromv ,whichpoint-they escape through the smokestack; the smoke-box or forward endof the locomotive is not shown as it is of the usual .well knownconstruction. A steam pipe-8 .conveys the steam from-the throttleinithesteam .dome to the first compartment or superheating means 9; thiscompartmentbeing intermediate of the fine sheet 15 and the; sheet towhich the ends of the tubes are Welded adjacent-to chamber l. v

' "The compartmentor super-heating means .{9 is provided with a suitablenumber, of

bathe-plates 10,extendi ng from side ,to side,

see, Fig. 2; The'bafiie-plates 1.0. are so ar--- I 'rangedas'to compelthe steamJto flow in a lateral direction ;from side to sideso asto comeinto contact with thesdifferent tubes 5' passing through thecompartment. It is apparent from the construction shown .in

Fig. 2 that the steam enteringat the top of are the boiler tubesthrough- .W-hic-h the gases of combustion pass and are the compartmentthrough fpipe 8 is comp'elled to pass downwardly r om one side of thecompartment to the other a number of pressure cylinders it isdischarged'through- Q thezs'team pipes 12, 12, see Fig. 2,'a-ndconveyedto the second compartment or superheating means 13, 61.; Fig. 1.As the superheater tubes 5 also pass through the compartment-13 it isapparent that the steam -willbe resuperheated. Com )artment 13 isrovided with a series of vertically arranged attic-plates 14, see Fig.4, which are alterna'tely secured to o posite sides on the interior ofthe shell, t ius providing'a passage for the, steam first at the upperpart-of the compartment and then at t e lower portion thereof, as isclearly shown in Fig. 4. This arrangement. of the battle-plates compelsthe steam to pass through a" circuitous route and in contact;- with thetubes 5. The steam pipes 1 2. ente'r the compartment 13 from the si es,see Fig. 4, which compels the steam tQ'flQW upward and downward-inco'ntact wit-h the tubesv 5-until it reaches the center portion of thecompartment when it will be allowed to flow-through the steam ,pipe 15,,

see Figs. h and 4, and be conveyed to thelow pressure valves andcylinders. After the ste'amhas spe'nt ;its energy in the lowpressure'cylinders it is' allowed to escape through I the exhaust standinto thesmoke-box and usual manner;.

pass out through: thesmoke stack the.

="Ihe superheaterj section is ,reniovablyse icuredin place'bythc rings16 and '19 which i are fastened to the ends of the superheater sectionand take. against or register with similar rings .17 and 18Lsecured-t9the shell of the boiler. -'The rings of'the superheater section andthose of the shell of the boiler maybe clampedorj'drawn together'by suitable bolts 20. In order to support the superheater section while it isbeing put iit'place' and also to assist incarrying its weight, we

refer'to' provide'the 'lu's 1Q""and 17; the ug 16' isse cllle'dfii'lo:'e'.r 1ng 166011 the superheater sectionhnd takes onto the lug -17which is seoureito the rin 17, see-Fig;

: 1. ltisrof course understood t atz'a similar. s'et oflugs aresecured-to 'the opposites de of .the-shelh The'ends 'of the aimpreferably welded .to'the tube sheets or platesat"the points 21, 21-;while 'the itujbes are rolled into i the intermediate flue. sheet 1which separate '-='17-';' 'these rings being preferably '--fi t-' v'vithin-,each other as shown;-ben1 r secured together-"b y bolts 20 aspreviously; .escribed. I

6 r the two compartments.

-- The coiuhi stion chambers, located be tween the boiler and the highpressure superheater 9 is provided with a manhole 22, and the combustionchamber 6, located between the low pressure superheater lii and the feedwater heater is also provided with a manhole at 23. These holes permit aman to enter either combustion chamber to make any necessary repairs.Both combustion chambers 4 and 6 are also provided with cinder hoppers24 and 25 so as to permit of the removal of cin ders or unconsumedproducts of combustion that may become lodged in either or both of thesechambers. The shell of the superheater, like that of the boiler, may becovered with lagging as at 27, see Fig. 3.- i

In Figs. 3' and 41 We have illustrated our invention adapted to amodified form of locomotive wherein the courses of the steam and hotgases of combustion are practically identical with that. described whenreferring to the construction illustrated in 'Fig. 1 wherein thesuperheater means aresho'w'n located in front of the high pressurecylinders. In the construction illustrated in ,Figs. 3 and 4, thesuperheater is located above the high pressure cylinders. constructionthe saddle cast-ing,'which supports the superheater and braces theengine frame between the high pressurdcylinders, is divided in ahorizontal plane" therebyforming the joint 28; the two sections of thesaddle casting being securely fastened together by bolts 29. Byformingthe saddle casting in the manner just described, it per- 'mits ofthe easy removal of the'superheater from the-boiler'and engineframe,'this being accomplishedv by first disconnecting the steampi es,(all of which are to'the. outside I of the spell of thesupcrheaterremoving thebolts 29 from the oint 28 in the saddle In this casting andthe bolts 20 from the connecting 16,17 and 18, 19. I In Fig. 5 wehave-shown a further modification, wherein the shell of the superheateris directly connected by rivets or bolts tothe shell of the feed waterportion of the boiler, formin the 'la 'ped' seam as at 31. By reasonoftie fact't at the connection or seam located in theforward combustionchamber G'Where a steam-tight jointis notrequired, the connectionbetween the two shellsma be made in the manner shown and descrlbed. Theother: end of the super- ".heater section is removably securedto theboiler shell-by the connedting rings 16 and made to Thecoursetofthesteam and the gases of Tu'Fig. 6 we shoiv anothermodification of our invention wherein the superheater tubes 5, 5 of thetwo superheating compartments are made separate, the ends of the tubes5, 5, being welded to the two tube .or line sheets 21. In thisconstruction the tube sheets 21' are provided with the rings 18 and.19", which are so formed as to fit into each other, the one ring beingprovided with a V-shaped projection or face which takes into acorrespondmg groove in the opposite ring. The

rings are clamped or drawn together by the bolts 20, thus forming atight joint. between the two sections ot the superheater. The course ofthe steam and that of the gases of combustion are similar to thatdescribed in speaking of the construction shown in Fig. 1.

In the construction shown in. Fig. (i, the saddle support 30 is placedback of the high pressure cylinder, thus allowing the super; heater tobe built directly atove the high pressure cylinder, thereby reducing thespace occupied by the combustion chamber t. This construction obviatesthe necessity for a long combustion chamber wherein the would becomecooled, and furthernim'e permits of a more compact construction. lVit-hthis'construction the superheater may be readily removed bydisconnecting the external steam pipe connections, and it is not necesary to dlsconnect the oint in the saddle, as would be necessary withthe construction shown in Fig. 3.

It is apparent from the construction shown in Fig. 6, that the entiresuperheating means for both the high pressure cylinder and for the lowpressure cylinder may be readilyremoved by remtn'ing the bolts ":0 inthe rings 16, 1.7 and 18, if), after disconnecting the external steampipe connections; or when desired, either one of the superheating meansmay beeasily removed, by loosening bolts 20 in the connecting rings 18,19 and also the bolts whereby the rings at the other end of the sectionare secured together.

It will be noted that all steam pipe joints ,are made to the outside oftheshell of the superheater where they can be easily repaired and anyleaks readily detected;'

whereas if the steam pipe joints were located in the interior of theshell, it would be necessary to put the locomotive in the round house,allow it to cool and then put what is known as a water test on theholler in order to definitely locate any defective.

steam joints; after repair-bu, the defective oint the water test wouldagain have to be applied in order to determine whether ,itwas properlydone.

our invention where the steam pipe joints are all located on the outsideof the shell, (which is madeposs ble because the outer casing or.shellof the superhtwiting means comprises a continuation of the.boiler-sl1ell), the .englne would not have to make this tie-- ()n. theother hand, with' f' he outside of the shell where it c ai'jbe done evenif the boiler-shell were hot, as

the joints could be'tested by allowing steam to enter the superheater.

W'th the shell or casing ofthe superheater constituting an intermediatesection outside of the shell, thus permitting any leaks to be readilydetected and adjustments easily made from" the outside. This is quite animportant feature and obviates the very serious object-ions heretoforeencountered.

\Ve have shown and described our invention as applied to an articulatedMallet compound locomotive, but we do not wish to be understood aslimiting ourselves to this particulartype of locomotive; nor do we wishto be understood as broadly claiming the invention of super-heatingmeans.

We have shown and described whatwe believe the preferred manner ofapplying our invention, but it will be readily understood thatalterations may be made in the arrangement and in a number of minor details without departing from the spirit: of our invention, and we do notwish to be understood-as limiting ourselves to the exact construct-ionsshown and described, but

What we claim asour invention and wish to secure by Letters Patent is 1.A superheater comprising a cylindrical boiler shelhcombustion chamberslocated at both ends of said section, smoke tubes extending in 'alongitudinal direction in said section and communicating Withcombustionchambers at both ends, in ians whereby said intermediate section isdivided into two compartments to form separate 'su perheating; means,and means whereby said intermedi ate section is removably held in place.

3. A superheater of the. class described whose outer casing forms anintermediate.

section of the boiler shell, means located to lay as the work to be donewould all be on the outside of said casing whereby the steam is led toand from said superheater, and interlocking rings secured tothe ends ofthe casing and to adjacent portions ofthe boiler shell whereb thesuperheater section is removablyfhel in place. I 4. A snperheater of,the class described comprising a cylindrical casing which forms anintermediate section of the boiler shell, retaining rings secured to theends of said casing and to adjacent portions of the boiler shell wherebythe casing is removably held inplace, and means located on theintermediate section and the boiler shell whereby said section issupported on the boiler shell.

5. In a locomotlve, the combination of a boiler, cylinders, anda'superheater, the shell of the su' erheater forming an intermediatesection 0 the boiler shell, means intermediate of said sect-ion and theboiler shell Wherebysaid section is secured in place to be readilyremoved, combustion chambers formed Within the boiler shell and locatedat opposite ends of said intermediate section, With steam connectionsbetween the boiler, superheater and the cylinders, located outside ofthe shell.

6. In a locomotive, a snperheater of they class described having acasing which forms an intermediate section of the boiler shell, :1

I combustion chamber located at each end of said section, means wherebythe casing is divided into two compartments to formseparate'siiperheating means, and rings secured to the ends of saidsection and the adjacent portions of the boiler shell, adapted toregister and form a'tight joint.

7. In a 1ocon1otive,'a superheater of the class described provided withan outer casing which forms an intermediate section of the boiler shell,combustion chambers formed at opposite ends of said section, the

superheater being composed of two compartments to form separatesuperheating means,

and means whereby the compartments are readlly removable.

WILLIAM F. BUCK; HENRY W.'JACOBS.

Witnesses as to IVm. F. Bu'ck:

J J. DILLON, W; C. PEYTON.

Witnesses as to Henry W. Jacobs:

ELSA N. KERNWEIN, FRANK MITCHELL,

